Crushed Stone
We deliver every gradeCrushed Stone Aggregate Base Course
Crushed stone base course is dense-graded rock that runs from about 1 1/2 inches down to fines. The mix isn't accidental. The bigger stones carry the load, and the small stuff packs into the gaps so the layer locks up tight when you compact it. It's what you build under a driveway, parking pad, or foundation before the top layer goes on.
You'll also hear this called ABC, crusher run, #610, or just base rock, depending on where you live. The gradation comes from state DOT specs and ASTM D2940 for graded base materials. It's usually one of the cheapest crushed products on the yard because it comes straight off the crusher with no extra screening or washing.
Compare every grade
| Grade | Size | Shape | Washed | Top use | We deliver |
|---|---|---|---|---|---|
| Aggregate Base Course (1″ Minus, Screened) | 1" Minus | Angular | — | Road base | We deliver it |
| Aggregate Base Course (2.25″, Ballast) | 2.25" | Angular | — | Railroad track support | We deliver it |
| Aggregate Base Course (Type 1, Apache Rose, Rose) | Type 1 | Angular | — | Road construction | We deliver it |
What people use it for
How to choose within crushed stone aggregate base course
Compaction over drainage
Angular pieces lock together. Pick a smaller size when you need the surface to stay put under a driveway or path.
Drainage over compaction
The larger the piece, the more room for water to move through. #1 or #57 for a French drain; #8 or smaller reads as loose gravel.
Washed vs. unwashed
Washed has the dust rinsed out, so it drains faster and won't track into the house. Unwashed compacts harder — better under a paver base.
All crushed stone aggregate base course grades
Aggregate Base Course (1″ Minus, Screened)
We deliverAggregate Base Course (2.25″, Ballast)
We deliverAggregate Base Course (Type 1, Apache Rose, Rose)
We deliverOther crushed stone families
Chip Stone
We deliverChip stone is small crushed rock, roughly 1/4 inch to 1/2 inch across, with the dust screened out.
57 Stone
We deliver#57 stone is crushed rock screened between about 1 inch and 1/4 inch, with the dust washed out.
4 Stone
We deliver#4 stone is crushed rock screened between about 1 1/2 inches and 3/4 inch.
8 Stone
We deliver#8 stone is crushed rock screened between about 3/8 inch and 1/8 inch, with the fines washed out.
67 Stone
We deliver#67 stone is crushed rock screened between about 3/4 inch and 1/4 inch, with most of the dust washed out.
Crushed Stone 3 Stone
We deliver#3 stone is crushed rock in pieces roughly 1 to 2 inches across.
10 Stone
We deliver#10 stone is crushed rock screened down to dust and small pieces smaller than about 3/8 inch.
1 Stone
We deliver#1 stone is large crushed rock, roughly 2 to 4 inches across.
89 Stone
We deliver#89 stone is crushed rock screened between about 3/8 inch and the size of a coarse sand grain.
9 Stone
We deliver#9 stone is crushed rock screened to a 3/8 inch top size, with pieces running down to about the size of a grain of rice.
5 Stone
We deliver#5 stone is crushed rock screened between about 1 inch and 1/2 inch, with the fines washed out.
Crushed Stone 2 Stone
We deliver#2 stone is crushed rock screened between about 2 1/2 inches and 1 1/2 inches, with the dust washed out.